The above example showed how to create a blank physical data model, but what if you already have the database defined and you want to modify your design.
上面的示例演示了如何创建空白物理数据模型，但是如果已经定义了数据库，希望修改设计，那么应该怎么办？
For example, it discusses logical and physical database design.
例如，它讨论逻辑和物理数据库设计。
This information gets transformed into a logical (or physical) database design.
该信息转换成逻辑的(或物理的)数据库设计。
If the anticipated cost is high, they tune the statement and the physical design of the database to reduce its anticipated cost, often by adding an index.
如果预期成本很高，他们会调整语句和数据库的物理设计(常常会添加索引)，从而降低预期成本。
Physical database design includes table design, index design, materialized query table design, and the design of the other physical database objects.
物理数据库设计包括表设计、索引设计、物化查询表设计，以及其他物理数据库对象的设计。
Fewer buffer pools and table Spaces and fewer distinct page sizes lead to a simpler physical database design which is easier to manage, maintain, and tune.
更少的缓冲池和表空间，以及更少的页宽种类，可以导致更简单的物理数据库设计，从而更容易管理、维护和调优。
This simplifies the storage estimate that eases the physical database design.
这简化了存储估算，进而简化了物理数据库设计。
As Figure 4 shows, DPF is a physical database design option that USES multiple separate database partitions in a multi-processing environment.
如图4所示，DPF是一种物理数据库设计选项，它在一个多处理环境中使用多个单独的数据库分区。
Such features can help administrators fine-tune their physical database design.
这些特性有助于管理员更好地调整物理数据库设计。
Database model: Encapsulates a logical and physical database design for this specific project.
数据库模型：封装供此特定项目使用的逻辑和物理数据设计。
At the time, most large companies organizationally separated their DBAs who did physical database design from the data administrators who created logical design.
在那时，多数大型公司就将进行数据库设计的DBA和创建逻辑设计的数据管理员分开了。
From the physical data model File page, accept the default value for the data design project, specify ARCH_JKENT_HR_changes for the name for the physical model, and specify the database type.
在PhysicalDataModelFile页面上，接受数据设计项目的默认值，指定CMERDADemo_HR_changes作为物理模型的名称，然后指定数据库类型。
The first thing is: the physical design of your database is critically important, especially the indexes.
第一件事是数据库的物理设计是极其重要的，尤其是索引。
You can easily create a logical data model that is derived from business requirements and transform that into a physical data model that reflects your database design.
可以从业务需求轻松地创建逻辑数据模型，并把它转换为反映数据库设计的物理数据模型。
Used the E-R graph tool to design the system information model, and has constructed the system database physical information model.
采用实体联系图工具设计了系统的信息模型，并构建了系统的数据库物理信息模型。
This article introduced the design solution of the FOC database system solution involved in the physical database structure, object design and etc in detail.
本文从数据库的物理结构、数据库对象设计、数据库备份等方面详细介绍了FOC数据库系统的设计方案。
This paper introduces the basis of implementation, database design, security design, interface design etc for the booking system of physical experiments on the network.
介绍了物理实验网上预约系统的实现基础、数据库设计、安全性设计、界面设计等。
The course also covers important management topics like physical design, security and architectures of database applications.
涵盖了数据库管理中涉及到的数据库应用中的物理设计，数据库安全和架构；
The database composing, the construction principle, the logic design, physical structure design, the original data design, the data warehouse design and the security maintenance were completed.
完成了数据库构成、建设原则、逻辑设计、物理结构设计、原数据设计、数据仓库设计、安全维护等。
In database design, identification of database and supporting software of CAC-HRMIS are given, the logic and physical design of database is carried out.
在数据库结构设计部分，依次给出了CAC -HRMIS数据库的标志符、支持软件，并进行了数据库的逻辑设计和物理设计。
Research contents of database design include database structure characteristics design, database behavior characteristics design and database physical model design.
研究数据库的设计内容，主要包括数据库的结构特性设计、数据库的行为特性设计、数据库的物理模式设计。
Narrow sense database design includes three stages: Conceptual design, logical design and physical design. This article discusses how to optimize the database performance on the three stages.
狭义数据库设计包括三个阶段：概念设计、逻辑设计和物理设计，故从这三个阶段探讨如何优化数据库的性能。
In my thesis, I concentrate the database logical design and physical design.
在本文中重点讲了数据库的逻辑设计和物理设计。
Through the research to the space data and attribute data of space database, the thesis puts forward the logical design and physical design of oilfield's space database.
本文通过对空间数据库中空间数据和属性数据的研究，提出油田空间数据库的逻辑设计和物理设计。
This trend is the confusion and interchange of the terms "grid" and "resolution" with respect to the physical-design database.
对于结构设计数据库，混淆和交换术语“栅格”和“分辨率”成为趋势。
The design of space-database went through concept design, logical design and physical design. This process gave prominence to designing the road and data structure of accidents information.
空间数据库的建立经历了概念设计、逻辑设计、物理设计过程，主要突出了道路、事故信息的数据结构设计。
The design of space-database went through concept design, logical design and physical design. This process gave prominence to designing the road and data structure of accidents...
空间数据库的建立经历了概念设计、逻辑设计、物理设计过程，主要突出了道路、事故信息的数据结构设计。
The design of space-database went through concept design, logical design and physical design. This process gave prominence to designing the road and data structure of accidents...
空间数据库的建立经历了概念设计、逻辑设计、物理设计过程，主要突出了道路、事故信息的数据结构设计。
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